CN111224508B - A multi-connected electric push rod structure - Google Patents
A multi-connected electric push rod structure Download PDFInfo
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- CN111224508B CN111224508B CN202010166177.4A CN202010166177A CN111224508B CN 111224508 B CN111224508 B CN 111224508B CN 202010166177 A CN202010166177 A CN 202010166177A CN 111224508 B CN111224508 B CN 111224508B
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- 230000005540 biological transmission Effects 0.000 claims description 35
- 230000009467 reduction Effects 0.000 claims description 21
- 230000008859 change Effects 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010977 unit operation Methods 0.000 description 2
- 206010066054 Dysmorphism Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/12—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types
- F16H37/124—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types for interconverting rotary motion and reciprocating motion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/038—Gearboxes for accommodating bevel gears
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
- H02K7/1163—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears where at least two gears have non-parallel axes without having orbital motion
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Gear Transmission (AREA)
Abstract
本发明涉及一种多连电动推杆结构，包括主动推杆单元、设置于主动推杆单元两侧的从动电动推杆、驱动主动推杆单元伸缩的驱动件以及连接主动推杆单元与从动推杆单元从而使得主动推杆单元和从动推杆单元同步工作的联动件，所述主动推杆单元以及从动推杆单元均包括底座、外管、内管、螺杆以及螺母，所述螺杆转动连接于底座上，外管一端固定于底座上且套设于螺杆外，内管穿设于外管中且套设于螺杆外，螺母设置于内管朝向底座的一端且与螺杆螺纹连接，内管与外管沿轴线在转动方向上卡接，驱动件设置于主动推杆单元中的底座上且与螺杆连接以驱动螺杆转动。本发明能够使得各电动推杆推出与收缩同步更加良好。
The present invention relates to a multi-link electric push rod structure, comprising an active push rod unit, a driven electric push rod arranged on both sides of the active push rod unit, a driving member driving the active push rod unit to extend and retract, and a linkage member connecting the active push rod unit and the driven push rod unit so that the active push rod unit and the driven push rod unit work synchronously, the active push rod unit and the driven push rod unit both comprise a base, an outer tube, an inner tube, a screw and a nut, the screw is rotatably connected to the base, one end of the outer tube is fixed to the base and sleeved outside the screw, the inner tube is penetrated in the outer tube and sleeved outside the screw, the nut is arranged at one end of the inner tube facing the base and is threadedly connected with the screw, the inner tube and the outer tube are clamped in the rotation direction along the axis, and the driving member is arranged on the base in the active push rod unit and connected with the screw to drive the screw to rotate. The present invention can make the push-out and retraction synchronization of each electric push rod better.
Description
Technical Field
The invention relates to the technical field of electric push rods, in particular to a multi-connection electric push rod structure.
Background
The electric push rod is also called a linear driver, and is mainly a novel linear actuating mechanism which is composed of a motor push rod, a control device and other mechanisms. The electric push rod comprises a base, an outer tube, an inner tube, a screw rod, a nut and a driving motor, wherein the screw rod is rotationally connected to the base, one end of the outer tube is fixed to the base and sleeved outside the screw rod, the inner tube is arranged in the outer tube in a penetrating manner and sleeved outside the screw rod, the nut is arranged at one end of the inner tube towards the base and is in threaded connection with the screw rod, the inner tube and the outer tube are clamped in the rotating direction along the axis, the driving motor is arranged on the base and is connected with the screw rod so as to drive the screw rod to rotate, and when the screw rod rotates, the inner tube and the nut are axially close to or far away from the base along the screw rod, so that the pushing-out and pulling-back functions are realized.
When the length of an object to be driven is long, a single electric push rod is used, so that on one hand, the pushing force is insufficient, on the other hand, the pushing force acts on the connecting point, the action is unbalanced, and the pushing effect is poor. The method for solving the problems in the prior art is to adopt a plurality of electric push rods to be distributed and installed along the length direction of the object, and the tops of the push rods of the plurality of electric push rods are linearly distributed along the length direction of the object, so that the electric push rods have better driving force and more balanced stress.
The prior art scheme has the following defects that as each electric push rod is driven by a respective driving motor, the controller is required to synchronize the driving motors, the cost is high, and the synchronization effect still has errors, so that the push-out and the contraction of each electric push rod are asynchronous, and the connection between the electric push rod and a driven object is damaged.
Disclosure of Invention
Aiming at the defects existing in the prior art, one of the purposes of the invention is to provide a multi-connection electric push rod structure which can enable the pushing out and contraction of each electric push rod to be synchronous better.
The technical scheme includes that the multi-connection electric push rod structure comprises a driving push rod unit, driven push rod units arranged on two sides of the driving push rod unit, driving pieces for driving the driving push rod units to stretch and retract, and linkage pieces for connecting the driving push rod unit and the driven push rod units so that the driving push rod unit and the driven push rod units synchronously work, wherein the driving push rod unit and the driven push rod units comprise a base, an outer tube, an inner tube, a screw rod and a nut, the screw rod is rotationally connected to the base, one end of the outer tube is fixed to the base and sleeved outside the screw rod, the inner tube is arranged in the outer tube in a penetrating mode and sleeved outside the screw rod, the nut is arranged at one end of the inner tube facing the base and in threaded connection with the screw rod, the inner tube and the outer tube are clamped in the rotation direction along an axis, and the driving pieces are arranged on the base in the driving push rod unit and are connected with the screw rod so as to drive the screw rod to rotate.
Through adopting above-mentioned technical scheme, during the use, drive initiative push rod unit operation through the driving piece to drive the driven push rod unit operation that is located initiative push rod unit both sides through the linkage piece, only have a driving piece, make a plurality of push rods can stretch out and draw back in step, avoided the poor problem of synchronism between a plurality of driving pieces.
The invention can be further configured in a preferred example that the driving piece comprises a driving motor, a speed reduction gear set, a first bevel gear, a second bevel gear and a third bevel gear, wherein the driving motor is arranged on the base, the output shaft is connected with the input shaft of the speed reduction gear set, the first bevel gear is connected with the output shaft of the speed reduction gear set, the second bevel gear is mutually perpendicular to the first bevel gear and meshed with the first bevel gear, the second bevel gear is rotatably arranged on the base, the third bevel gear is mutually perpendicular to the second bevel gear and meshed with the second bevel gear, and the third bevel gear is fixedly connected with the screw rod.
Through adopting above-mentioned technical scheme, actuating mechanism uses driving motor to pass through reduction gear group speed reduction and drive first bevel gear and rotate, and the rethread is perpendicular and mesh second bevel gear and third bevel gear in proper order, thereby the second bevel gear drives the screw rod rotation of linkage operation drive driven push rod unit, and the third bevel gear directly drives the screw rod rotation, realizes the synchronous flexible of the screw rod of initiative push rod unit and the screw rod of driven push rod unit.
The invention may further be arranged in a preferred example in that the linkage comprises a linkage shaft arranged on both sides of the base, a connecting sleeve connecting the linkage shaft between adjacent push rod units, the linkage shaft being coaxially connected with the second bevel gear in the push rod unit.
Through adopting above-mentioned technical scheme, initiative push rod unit second umbrella tooth rotates and drives the universal driving axle and rotate, and the universal driving axle in the rethread adapter sleeve drive adjacent driven push rod unit rotates, and the universal driving axle in the driven push rod unit drives the second umbrella tooth in the driven push rod unit and rotates to drive the third umbrella tooth with this second umbrella tooth meshing, thereby drive the screw rod in the driven push rod unit and rotate.
The invention may in a preferred embodiment be further arranged such that the connecting sleeve is keyed to the universal shafts at both ends of the connecting sleeve.
By adopting the technical scheme, the key connection structure is simple, and the production, the processing and the assembly are convenient.
The invention can be further configured in a preferred example that the base comprises a special-shaped tube seat, an upper cover and an upper cover from top to bottom in sequence, wherein the special-shaped tube seat is connected with the upper cover through a first fixing bolt, the upper cover is connected with the upper cover through a second fixing bolt, a transmission cavity is formed between the upper cover and the upper cover, the first umbrella tooth, the second umbrella tooth and the third umbrella tooth are all arranged in the transmission cavity, a transmission shaft is rotatably arranged in the transmission cavity, the second umbrella tooth is coaxially fixed on the transmission shaft, and two ends of the transmission shaft are coaxially connected with two linkage shafts of a push rod unit.
Through adopting above-mentioned technical scheme, through fixed mounting and the direction location of first fixing bolt connection dysmorphism tube socket, upper cover and upper cover, realize the fixed mounting between upper cover and the upper cover through the second fixing bolt, first umbrella tooth, second umbrella tooth and third umbrella tooth are all installed in the transmission chamber for structural layout is more reasonable, and the transmission shaft crosses the transmission chamber and is connected with the transmission shaft, transmits the universal driving shaft of both sides with power.
The invention can be further configured in a preferred example that the reduction gear set comprises an input gear, a first gear, a second gear, a third gear, a fourth gear and an output gear, wherein the input gear is coaxially connected with an output shaft of the driving motor, the first gear and the second gear are coaxially arranged, the second gear is positioned below the first gear, the third gear and the fourth gear are coaxially arranged, the third gear is positioned below the fourth gear, the input gear is meshed with the first gear, the second gear is meshed with the third gear, the fourth gear is meshed with the output gear, and the output gear is coaxially connected with the first bevel gear of the screw.
Through adopting above-mentioned technical scheme, first gear and second gear stagger in the height, third gear and fourth gear stagger in the height, have reduced required installation space, can change specific deceleration proportion through changing the number of teeth of input gear, first gear, second gear, third gear, fourth gear and output gear, and the scope of deceleration proportion is big after a plurality of gear engagement transmission.
The invention may be further configured in a preferred example that the bottom surface of the base of the active push rod unit is provided with a lower cover, a speed change cavity is formed between the lower cover and the bottom surface of the base, and the reduction gear set is arranged in the speed change cavity.
By adopting the technical scheme, the speed reduction gear set is arranged in the speed change cavity, is closer to the driving motor and the output gear, has short transmission distance, and is covered by the lower cover, so that dust accumulation and damage caused by external factors of the speed reduction gear set are avoided.
The invention can be further configured in a preferred example that the base is provided with a transmission hole for the linkage shaft to extend into the transmission cavity, a circular bulge is arranged at the orifice, and a reinforcing sleeve is sleeved outside the bulge.
Through adopting above-mentioned technical scheme, strengthen the cover and overlap in protruding outside, protect and strengthen bellied structure when the operation, reduce bellied damage.
The present invention may be further configured in a preferred example in which the protrusions are provided with threads, and end caps are screwed to the two protrusions located at the outermost sides in the distribution direction of the putter unit.
Through adopting above-mentioned technical scheme, two universal driving axles that are located outside position expose outside, through threaded connection end cover on protruding, cover the tip of universal driving axle for the tip of universal driving axle no longer exposes, prevents that dust etc. from getting into protruding inside, also can rust-resistant to a certain extent.
The invention may in a preferred example be further arranged such that the end of the inner tube extending beyond the outer tube is provided with an upper end fitting.
Through adopting above-mentioned technical scheme, upper end joint is used for being connected with the purpose thing that needs the promotion, and during the use, the screw rod drives the inner tube after rotating and stretches out and draws back, drives upper end joint and removes when the inner tube stretches out and draws back to drive the purpose thing that is connected with upper end joint and remove.
In summary, the present invention includes at least one of the following beneficial technical effects:
1. The driving push rod unit is driven to operate by the driving piece, the driven push rod units positioned at two sides of the driving push rod unit are driven to operate by the linkage piece, and the driving piece is only provided with one driving piece, so that a plurality of push rods can synchronously stretch out and draw back, and the problem of poor synchronism among the driving pieces is avoided;
2. The driving mechanism uses a driving motor to reduce speed through a reduction gear set and drive the first bevel gear to rotate, and then drives the linkage piece to operate through the second bevel gear and the third bevel gear which are vertical and meshed in sequence, so that the screw of the driven push rod unit is driven to rotate, and the third bevel gear directly drives the screw to rotate, so that synchronous expansion and contraction of the screw of the driving push rod unit and the screw of the driven push rod unit are realized;
3. The first gear and the second gear are staggered in height, the third gear and the fourth gear are staggered in height, the required installation space is reduced, the specific reduction ratio can be changed by changing the number of teeth of the input gear, the first gear, the second gear, the third gear, the fourth gear and the output gear, and the range of the reduction ratio after the gears are meshed and transmitted is large.
Drawings
Fig. 1 is a schematic structural diagram of a multi-connection electric putter structure in this embodiment.
Fig. 2 is a sectional view of a multi-connection electric putter structure according to this embodiment.
Fig. 3 is an enlarged view at a in fig. 2.
FIG. 4 is an enlarged view at B in FIG. 2
Fig. 5 is an exploded view of a multi-connection electric putter structure according to this embodiment.
Reference numerals are 11, a driving push rod unit, 12, a driven push rod unit, 2, a base, 21, a special-shaped tube seat, 22, an upper cover, 23, an upper cover, 231, a mounting plate, 24, a lower cover, 25, a first fixing bolt hole, 3, a driving piece, 31, a driving motor, 32, a first umbrella tooth, 33, a second umbrella tooth, 34, a third umbrella tooth, 4, a linkage piece, 41, a linkage shaft, 42, a connecting sleeve, 43, a protrusion, 44, a reinforcing sleeve, 51, an input gear, 52, a first gear, 53, a second gear, 54, a third gear, 55, a fourth gear, 56, an output gear, 71, an outer tube, 72, an inner tube, 721, an upper end joint, 73, a screw, 74, a nut, 81, a speed changing cavity, 82, a transmission cavity, 83 and a transmission shaft.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, a multi-connection electric putter structure according to the present invention includes a driving putter unit 11, two driven putter units 12 located at two sides of the driving putter unit 11, a driving member 3, and a linkage member 4 connecting the driving putter unit 11 and the driven putter unit 12 to enable the driving putter unit 11 and the driven putter unit 12 to extend and retract synchronously.
As shown in fig. 1 and 2, the driving member 3 includes a driving motor 31, a reduction gear set, a first bevel gear 32, a second bevel gear 33, and a third bevel gear 34.
As shown in fig. 1 and 3, the driving putter unit 11 and the driven putter unit 12 each include a base 2, an outer pipe 71, an inner pipe 72, a screw 73, and a nut 74.
As shown in fig. 1 and 4, the base 2 includes a shaped tube seat 21, an upper cover 22, and an upper cover 23, which are disposed in this order from top to bottom.
As shown in fig. 4 and 5, the bottom surface of the upper cover 23 facing away from the upper cover 22 is fixed with a lower cover 24 through a second fixing bolt, a speed change cavity 81 is formed between the lower cover 24 and the upper cover 23, first fixing bolt holes 25 are formed in the upper cover 23 and the upper cover 22, the first fixing bolt holes 25 of the upper cover 23 are coaxially arranged with corresponding first fixing bolt holes 25 in the upper cover 22, fixing bolt holes are formed in the surface of the special-shaped tube seat 21 facing the upper cover 22, first fixing bolts penetrate through the first fixing bolt holes 25 in the upper cover 23, the bottoms of the first fixing bolts penetrate through the first fixing bolt holes 25 in the upper cover 22 and are in threaded connection with the fixing bolt holes, and accordingly the special-shaped tube seat 21, the upper cover 22 and the upper cover 23 are fixed together, and a transmission cavity 82 is formed between the upper cover 23 and the upper cover 22.
As shown in fig. 2 and 4, the screw 73 is rotatably connected with the special-shaped tube seat 21 through a bearing, the bottom end of the screw 73 penetrates through the upper cover 22, stretches into the transmission cavity 82 and is fixedly connected with the third umbrella tooth 34, the third umbrella tooth 34 is horizontally arranged, the transmission cavity 82 is rotatably connected with a transmission shaft 83 which is horizontally arranged and is arranged along the distribution direction of the driving push rod unit 11 and the driven push rod unit 12, the second umbrella tooth 33 is fixedly connected with the transmission shaft 83 and is vertically arranged, and the second umbrella tooth 33 is meshed with the third umbrella tooth 34.
As shown in fig. 3, the outer tube 71 is fixed on the shaped tube seat 21, the inner tube 72 is inserted into the outer tube 71 and sleeved outside the screw 73, the nut 74 is screwed on the screw 73, the end of the inner tube 72 close to the shaped tube seat 21 is screwed with the nut 74, the rotation direction of the screw thread is opposite to the screw thread direction of the screw 73 and the nut 74, and one end of the inner tube 72 away from the nut 74 extends out of the outer tube 71 and is fixedly connected with the upper end joint 721.
As shown in fig. 4 and 5, the reduction gear set includes an input gear 51, a first gear 52, a second gear 53, a third gear 54, a fourth gear 55 and an output gear 56, the output gear 56 is rotatably mounted on the upper cover 23 through the output gear 56 and is located in the speed change cavity 81, one side of the upper cover 23 is integrally provided with a mounting plate 231, the driving motor 31 is mounted on the mounting plate 231 and is vertically and downwardly disposed, and an output shaft of the driving motor 31 extends into the speed change cavity 81 and is fixedly connected with the input gear 51.
The first gear 52 and the second gear 53 are coaxially and horizontally rotatably installed in the speed changing cavity 81, the second gear 53 is located below the first gear 52, the first gear 52 is meshed with the output shaft, the second gear 53 is meshed with the third gear 54, the third gear 54 and the fourth gear 55 are coaxially and horizontally rotatably installed in the speed changing cavity 81, the fourth gear 55 is meshed with the output gear 56, the number of teeth of the input gear 51 is smaller than that of the first gear 52, the number of teeth of the first gear 52 is larger than that of the second gear 53, the number of teeth of the second gear 53 is smaller than that of the third gear 54, the number of teeth of the third gear 54 is larger than that of the fourth gear 55, and the number of teeth of the fourth gear 55 is smaller than that of the output gear 56, so that multistage speed reduction transmission is achieved.
The output gear 56 is rotatably mounted in the speed changing cavity 81, and the rotation shaft of the output gear 56 passes through the upper cover 23 upwards and enters the transmission cavity 82, the first bevel gear 32 is horizontally arranged and fixed on the part of the output gear 56 located in the transmission cavity 82, and the first bevel gear 32 is meshed with the second bevel gear 33.
As shown in fig. 2, the link 4 includes a link shaft 41 provided at both sides of the base 2, and a connecting sleeve 42 connecting the link shaft 41 between adjacent push rod units.
The upper cover 23 and the upper cover 22 are provided with semicircular bulges 43 in an integrally protruding mode on two sides, the semicircular bulges 43 on the upper cover 23 and the upper cover 22 are in butt joint to form a complete circular shape, the universal driving shaft 41 is fixedly connected with two ends of the driving shaft 83 and penetrates through the bulges 43 to extend out of the driving cavity 82, and the bulges 43 are sleeved with reinforcing sleeves 44. The connecting sleeve 42 connects the coupling shaft 41 of the driving putter unit 11 with the coupling shaft 41 of the driven putter unit 12, so that the coupling shafts 41 can be rotated synchronously.
The implementation principle of the embodiment is as follows.
When the driving motor 31 works, the speed of the driving motor is reduced through the reduction gear set, the driving shaft 83 and the third bevel gear 34 are driven to rotate, the third bevel gear 34 is driven to rotate, the screw 73 is driven to rotate, the driving shaft 83 is driven to rotate, and therefore the driving shaft 83 in the driven push rod unit 12 is driven to rotate. The screw 73 is driven to rotate by the third bevel gear 34 in the driven push rod unit 12, so that the nut 74 drives the inner tube 72 to stretch and slide on the outer tube 71.
Since the three push rod units are driven by only one driving motor 31, the three push rod units can synchronously extend and retract as long as the transmission ratio of the driving motor 31 to the three third umbrella teeth 34 is kept the same in the transmission process.
The embodiments of the present invention are all preferred embodiments of the present invention, and are not limited in scope by the present invention, so that all equivalent changes according to the structure, shape and principle of the present invention are covered by the scope of the present invention.
Claims (7)
1. The utility model provides a multi-connection electric putter structure, which is characterized in that the multi-connection electric putter structure comprises a driving putter unit (11), driven putter units (12) arranged at two sides of the driving putter unit (11), a driving piece (3) for driving the driving putter unit (11) to stretch out and draw back, and a linkage piece (4) for connecting the driving putter unit (11) and the driven putter unit (12) so as to enable the driving putter unit (11) and the driven putter unit (12) to synchronously work, wherein the driving putter unit (11) and the driven putter unit (12) comprise a base (2), an outer pipe (71), an inner pipe (72), a screw (73) and a nut (74), one end of the screw (73) is rotationally connected to the base (2), the outer pipe (71) is fixed on the base (2) and sleeved outside the screw (73), the inner pipe (72) is arranged in the outer pipe (71) in a penetrating way and sleeved outside the screw (73), the nut (74) is arranged at one end of the inner pipe (72) towards the base (2) and is in threaded connection with the screw (73), the inner pipe (72) and the outer pipe (71) is clamped with the outer pipe (71) along the axis in the rotation direction, the driving piece (3) is arranged on the base (2) in the driving push rod unit (11) and is connected with the screw (73) of the driving push rod unit (11) to drive the screw (73) of the driving push rod unit (11) to rotate;
The driving piece (3) comprises a driving motor (31), a speed reduction gear set, a first bevel gear (32), a second bevel gear (33) and a third bevel gear (34), wherein the driving motor (31) is arranged on the base (2) and an output shaft is connected with an input shaft of the speed reduction gear set, the first bevel gear (32) is connected with an output shaft of the speed reduction gear set, the second bevel gear (33) is mutually perpendicular to the first bevel gear (32) and mutually meshed, the second bevel gear (33) is rotatably arranged on the base (2), the third bevel gear (34) is mutually perpendicular to the second bevel gear (33) and mutually meshed, and the third bevel gear (34) is fixedly connected with a screw rod (73) of the driving push rod unit (11);
The linkage piece (4) comprises linkage shafts (41) arranged on two sides of the base (2) of the driving push rod unit (11) and connecting sleeves (42) for connecting the linkage shafts (41) between adjacent push rod units, and the linkage shafts (41) are coaxially connected with the second umbrella teeth (33);
the speed reduction gear set comprises an input gear (51), a first gear (52), a second gear (53), a third gear (54), a fourth gear (55) and an output gear (56), wherein the input gear (51) is coaxially connected with an output shaft of a driving motor (31), the first gear (52) and the second gear (53) are coaxially arranged, the second gear (53) is located below the first gear (52), the third gear (54) and the fourth gear (55) are coaxially arranged, the third gear (54) is located below the fourth gear (55), the input gear (51) is meshed with the first gear (52), the second gear (53) is meshed with the third gear (54), the fourth gear (55) is meshed with the output gear (56), and the output gear (56) is coaxially connected with a screw (73) and a first bevel gear (32) of a driving push rod unit (11).
2. The multi-connection electric push rod structure according to claim 1, wherein the connecting sleeve (42) is connected with the linkage shafts (41) at two ends of the connecting sleeve (42) in a key manner.
3. The multi-connection electric push rod structure according to claim 1, wherein the base (2) sequentially comprises a special-shaped tube seat (21), an upper cover (22) and an upper cover (23) from top to bottom, the special-shaped tube seat (21) and the upper cover (22) are connected through a first fixing bolt, the upper cover (22) and the upper cover (23) are connected through a second fixing bolt, a transmission cavity (82) is formed between the upper cover (22) and the upper cover (23), the first umbrella tooth (32), the second umbrella tooth (34) and the third umbrella tooth (34) are all installed in the transmission cavity (82), a transmission shaft (83) is rotatably installed in the transmission cavity (82), and the second umbrella tooth (83) is coaxially fixed on the transmission shaft (83), and two ends of the transmission shaft (83) are coaxially connected with two linkage shafts (41) on two sides of a push rod unit.
4. The multi-connection electric putter structure according to claim 1, wherein a lower cover (24) is provided on a bottom surface of the base (2) of the active putter unit (11), a speed change chamber (81) is formed between the lower cover (24) and the bottom surface of the base (2), and the speed reduction gear set is disposed in the speed change chamber (81).
5. The multi-connection electric push rod structure according to claim 1, wherein the base (2) is provided with a transmission hole for the linkage shaft (41) to extend into the transmission cavity (82), a circular protrusion (43) is arranged at the orifice of the transmission hole, and a reinforcing sleeve (44) is sleeved outside the protrusion (43).
6. The multi-connection electric putter structure according to claim 5, wherein the protrusions (43) are provided with threads, and end caps are screwed to the two protrusions (43) located at the outermost sides in the distribution direction of the putter units.
7. The multi-connection electric putter structure according to claim 1, characterized in that the end of the inner tube (72) extending out of the outer tube (71) is provided with an upper end fitting (721).
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| CN202010166177.4A CN111224508B (en) | 2020-03-11 | 2020-03-11 | A multi-connected electric push rod structure |
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| CN202010166177.4A CN111224508B (en) | 2020-03-11 | 2020-03-11 | A multi-connected electric push rod structure |
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| CN109027173B (en) * | 2018-09-20 | 2024-02-13 | 佛山科学技术学院 | a putter |
| CN116464726A (en) * | 2023-04-24 | 2023-07-21 | 中国恩菲工程技术有限公司 | Spring adjustment device, reaction device and spring adjustment method |
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| US10024406B2 (en) * | 2013-02-28 | 2018-07-17 | Per Stensgaard Innovasjon As | Actuator |
| CN204244001U (en) * | 2014-11-19 | 2015-04-01 | 浙江捷昌线性驱动科技股份有限公司 | A kind of electric pushrod of electric machine built-in |
| CN109713839A (en) * | 2019-01-17 | 2019-05-03 | 深圳市东森环境技术有限公司 | Electric pushrod and its cabinet |
| CN110578789B (en) * | 2019-09-06 | 2021-04-16 | 绍兴市上虞荣达实业有限公司 | Electric push rod |
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